use wexpect instead of pexpect on Windows

Author: basnijholt

adaptive/tests/test_runner.py

@@ -1,4 +1,5 @@
 import asyncio
+import os
 import sys
 import time
 
@@ -72,9 +73,13 @@ async def f(x):
 @pytest.fixture(scope="session")
 def ipyparallel_executor():
     from ipyparallel import Client
-    import pexpect
 
-    child = pexpect.spawn("ipcluster start -n 1")
+    if os.name == "nt":
+        import wexpect as expect
+    else:
+        import pexpect as expect
+
+    child = expect.spawn("ipcluster start -n 1")
     child.expect("Engines appear to have started successfully", timeout=35)
     yield Client()
     if not child.terminate(force=True):

setup.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 
+import os
 import sys
 
 from setuptools import find_packages, setup
@@ -48,10 +49,14 @@ def get_version_and_cmdclass(package_name):
         "pytest-timeout",
         "pre_commit",
     ],
-    "other": ["pexpect", "ipyparallel", "distributed", "scikit-optimize"],
+    "other": [
+        "ipyparallel",
+        "distributed",
+        "scikit-optimize",
+        "wexpect" if os.name == "nt" else "pexpect",
+    ],
 }
 
-
 setup(
     name="adaptive",
     description="Parallel active learning of mathematical functions",